<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <script type="text/javascript" src="./js/ctx.js"></script>
</head>
<body>
<div id="cesiumContainer">
</div>
<script>
    var initCesium = new InitCesium();
    var viewer = initCesium.initViewer('cesiumContainer');

    var imageryLayer = viewer.imageryLayers.addImageryProvider(new Cesium.IonImageryProvider({ assetId: 3827 }));
    viewer.flyTo(imageryLayer);
</script>
</body>
</html>